Abstract
Longitudinal density correlations of produced matter in Au+Au collisions at VsNN=200 GeV have been measured from the inclusive charged particle distributions as a function of pseudorapidity window sizes. The extracted αξ parameter, related to the susceptibility of the density fluctuations in the long-wavelength limit, exhibits a nonmonotonic behavior as a function of the number of participant nucleons, Npart. A local maximum is seen at Npart~90, with corresponding energy density based on the Bjorken picture of εBjτ~2.4 GeV/(fm2c) with a transverse area size of 60 fm2. This behavior may suggest a critical phase boundary based on the Ginzburg-Landau framework.
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | 034903/1-034903/33 |
| Number of pages | 33 |
| Journal | Physical Review. C, Nuclear physics |
| Volume | 76 |
| Issue number | 3 |
| Publication status | Published - 2007 |